Final answer:
The nurse is experiencing conflict regarding the situation because they may not trust the resident to make the best care decisions.
Step-by-step explanation:
The rationale for why the nurse is experiencing conflict regarding this situation is that the nurse may not trust the resident to make the best care decisions. In the ICU, patient care is of utmost importance, and nurses work closely with doctors to ensure the best outcomes for their patients. The nurse's hesitation to implement the prescription without consulting the attending healthcare provider indicates a concern about the resident's competency in making important medical decisions.